Convert integers of any size (signed) between bases 2 to 36: binary, octal, decimal, hex, base32, base36, with bit and byte length and two's complement. Accepts 0x/0b/0o prefixes.

Latest US Treasury par yield curve (1 month to 30 years), change in basis points versus N days ago, 10y-2y and 10y-3m spreads and inversion flag. Official US Treasury data (public domain).

Search scientific papers on arXiv (AI, physics, maths, economics...): title, authors, abstract, categories, dates and PDF link; by relevance or newest, with category filter (cs.AI, cs.CR, q-fin...).

Latest SEC Form 4 insider filings across the whole US market: issuer company, who filed (directors, officers, 10% owners), date and link. Filter by company or person. For one company's trade details use insiders-empresa.

House prices in Europe (Eurostat house price index): nominal year-on-year change of the latest quarter, as a ranking of about 30 European countries or for one country.

US IPOs and offerings in the pipeline: latest S-1 and F-1 (foreign issuers) registration statements, amendments and final 424B4 prospectuses (priced), with company, stage, date and link.

Convert APR to APY or APY to APR for any compounding frequency (continuous, daily, hourly, per block...) and optionally project the final value and gain of a deposit over N days. Useful to compare DeFi yields.

Spanish Official State Gazette (BOE) daily summary: every item of a given day with section, department and official links, filterable by section (e.g. civil service exams 'oposiciones', appointments, public procurement), department or title keywords.

Calls for public grants and subsidies in Spain from every administration (State, regions, city councils) in the National Grants Database (BDNS), latest or by keyword, with level, body, EU recovery funds flag and link.

Deep comparison of two JSON documents: added, removed and changed values with their exact path, optionally ignoring list order. Detect changes in API responses, configs or data snapshots.

Annual government deficit (-) or surplus (+) as % of GDP for any European country; without a country, a ranking. Official Eurostat data.

Readings for one AI model listed on OpenRouter (GET /v1/models/report?id={model id}): input/output prices per 1M tokens with 24h and 7d change, standard job cost, context length, modalities, the vendor's status-page indicator and incidents, and listing events, each with source and timestamp. Not a …

Count the tokens of a text with OpenAI tokenizers (o200k for GPT-4o/4.1/5, cl100k for GPT-4/3.5) plus estimates for Claude, Llama and Gemini, with characters per token. Budget LLM calls and split contexts.

Pay Radar: pre-payment readings for an XRPL x402 endpoint (GET /v1/paycheck?url={endpoint}; alias /v1/payradar). Reads its 402 without paying and lists raw readings first: x402 shape, network, asset (RLUSD by issuer), the payTo account on the XRP Ledger (exists, activated, balance, trust line, age)…

Reference data for a blockchain by its chainId: name, gas/native token, block explorers, number of public RPCs and website. Utility for multi-chain agents. Live from chainid.network (ethereum-lists, open data).

Fetch an RSS or Atom feed and return normalized JSON items: title, link, publication date (ISO) and summary. Server-side fetching with SSRF guard; handles both RSS 2.0 and Atom dialects. Use this when an agent needs to any feed → clean JSON items, no XML parsing on your side.

Returns the current date and time in any IANA time zone, plus Unix seconds/milliseconds, ISO 8601, weekday and day-of-year. Use it whenever an agent needs to know 'now'. Use this when an agent needs to the current date/time in any time zone — agents have no clock.

Savings or investment plan with monthly contributions and compound interest: final value, total contributed, interest earned, value in today's money after inflation, yearly evolution and the monthly amount needed to reach a goal.

npm package profile: latest version, description, license, repository, dependencies, unpacked size, weekly and monthly downloads, maintainers and deprecation flag. For dependency choice and audits.

DNS records of a domain with TTL: A, AAAA, CNAME, MX, NS, TXT, SOA, CAA, SRV, HTTPS. Choose the types or get the common ones at once.